5. A technologist collected the following data for their Class A volumetric flask: Table 1: Temperature ("C) and mass (g) of water (obtained through mass by difference) contained in a Class A volumetric flask Mass of empty flask (g) Mass of flask + water (g) Temperature of water ("C) 76.9567 86.9802 22.3 77.4963 87.4977 22.5 77.9024 87.9318 22.5 a. What would be the average volume of water (in mL) contained in the flask? Show your calculation. b. What would be the relative standard deviation (RSD, %) for the volumes of water contained in the flask? Show your calculation. c. Are these results considered accurate? Explain. d. Are these results considered precise? Explain.
Ideal and Real Gases
Ideal gases obey conditions of the general gas laws under all states of pressure and temperature. Ideal gases are also named perfect gases. The attributes of ideal gases are as follows,
Gas Laws
Gas laws describe the ways in which volume, temperature, pressure, and other conditions correlate when matter is in a gaseous state. The very first observations about the physical properties of gases was made by Robert Boyle in 1662. Later discoveries were made by Charles, Gay-Lussac, Avogadro, and others. Eventually, these observations were combined to produce the ideal gas law.
Gaseous State
It is well known that matter exists in different forms in our surroundings. There are five known states of matter, such as solids, gases, liquids, plasma and Bose-Einstein condensate. The last two are known newly in the recent days. Thus, the detailed forms of matter studied are solids, gases and liquids. The best example of a substance that is present in different states is water. It is solid ice, gaseous vapor or steam and liquid water depending on the temperature and pressure conditions. This is due to the difference in the intermolecular forces and distances. The occurrence of three different phases is due to the difference in the two major forces, the force which tends to tightly hold molecules i.e., forces of attraction and the disruptive forces obtained from the thermal energy of molecules.
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